mirror of
https://github.com/d0k3/GodMode9.git
synced 2025-06-26 13:42:47 +00:00
46 lines
1.7 KiB
C
46 lines
1.7 KiB
C
|
#include "tmd.h"
|
||
|
|
#include "sha.h"
|
||
|
|
|
||
|
|
u32 GetTmdCtr(u8* ctr, TmdContentChunk* chunk) {
|
||
|
|
memset(ctr, 0, 16);
|
||
|
|
memcpy(ctr, chunk->index, 2);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
u32 FixTmdHashes(TitleMetaData* tmd) {
|
||
|
|
TmdContentChunk* content_list = (TmdContentChunk*) (tmd + 1);
|
||
|
|
u32 content_count = getbe16(tmd->content_count);
|
||
|
|
// recalculate content info hashes
|
||
|
|
for (u32 i = 0, kc = 0; i < 64 && kc < content_count; i++) {
|
||
|
|
TmdContentInfo* info = tmd->contentinfo + i;
|
||
|
|
u32 k = getbe16(info->cmd_count);
|
||
|
|
sha_quick(info->hash, content_list + kc, k * sizeof(TmdContentChunk), SHA256_MODE);
|
||
|
|
kc += k;
|
||
|
|
}
|
||
|
|
sha_quick(tmd->contentinfo_hash, (u8*)tmd->contentinfo, 64 * sizeof(TmdContentInfo), SHA256_MODE);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
u32 BuildFakeTmd(TitleMetaData* tmd, u8* title_id, u32 n_contents, u32 save_size) {
|
||
|
|
const u8 sig_type[4] = { TMD_SIG_TYPE };
|
||
|
|
// safety check: number of contents
|
||
|
|
if (n_contents > TMD_MAX_CONTENTS) return 1; // !!!
|
||
|
|
// set TMD all zero for a clean start
|
||
|
|
memset(tmd, 0x00, TMD_SIZE_N(n_contents));
|
||
|
|
// file TMD values
|
||
|
|
memcpy(tmd->sig_type, sig_type, 4);
|
||
|
|
memset(tmd->signature, 0xFF, 0x100);
|
||
|
|
snprintf((char*) tmd->issuer, 0x40, TMD_ISSUER);
|
||
|
|
tmd->version = 0x01;
|
||
|
|
memcpy(tmd->title_id, title_id, 8);
|
||
|
|
tmd->title_type[3] = 0x40; // whatever
|
||
|
|
for (u32 i = 0; i < 4; i++) tmd->save_size[i] = (save_size >> (i*8)) & 0xFF; // little endian?
|
||
|
|
tmd->content_count[1] = (u8) n_contents;
|
||
|
|
memset(tmd->contentinfo_hash, 0xFF, 0x20); // placeholder (hash)
|
||
|
|
tmd->contentinfo[0].cmd_count[1] = (u8) n_contents;
|
||
|
|
memset(tmd->contentinfo[0].hash, 0xFF, 0x20); // placeholder (hash)
|
||
|
|
// nothing to do for content list (yet)
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|